jp450
Well-Known Member
- Joined
- January 7, 2004
- Messages
- 502
- Reaction score
- 1
- City, State
- Pepperell, MA
- Year, Model & Trim Level
- '05 XLT V8
My 05 Ex with the 4.6 started to idle rough today. Ran fine yesterday. Then after a stop at the mall on the way home the MIL came on. I was hoping for a misfire code but was not so lucky. I retrieved the following. P0174 and P2197. Bank 2 lean and Lack of HO2s- B2S1 Switching, Sensor indicated lean. The code reader said B2S1 stuck. The following snap shot data was obtained:
Engine coolent temp: 185
Short Term Fuel Trim - Bank 1: -0.78%
Long Term Fuel Trim - Bank 1: 0.78%
Short Term Fuel Trim - Bank 2: 29.69%
Long Term Fuel Trim - Bank 2: 24.22%
Intake Manifold Absolute Pressure: 15.99 inHg
Engine RPM: 1552.25 RPM
Vehicle Speed: 17.40 MPH
Ignition Timing Advance #1 Cylinder: 36.50
Intake Air Temp: 78.80
Air Flow Rate MAF Sensor: 2.69 lb.min
Absolute Throttle Possition: 20.78%
Oxygen Sensor Output Voltage (B1-S1): 0.65v
Oxygen Sensor Output Voltage (B1-S2): 0.49v
Short Term Fuel Trim (B1-S1): 0.78%
Short Term Fuel Trim (B1-S2): 99.22%
Oxygen Sensor Output Voltage (B2-S1): 0.01v
Oxygen Sensor Output Voltage (B2-S2): 0.77v
Short Term Fuel Trim (B2-S1): 28.91%
Short Term Fuel Trim (B2-S2): 99.22%
Time Since Engine Start: 162 sec
Fuel Rail Pressure relative to Vacuum: 38.88 PSI
Commanded EGR: 43.14%
EGR Error: 16.41%
Commanded Evaporative Purge: 0.00%
Fuel Level Input: 58.82%
Warm ups since DTC Cleared: 255
Distance since DTC Cleared: 25850.86 miles
Evap System Vapor Pressure: -32.65 inHg
Barometric Pressure: 29.91 inHg
Catalyst Temp Bank 1: 1126.76
Catalyst Temp Bank 2: 1126.76
Looking at the Bank 2 numbers I would say that the B2-S1 needs replacement. I looked for broken or dislodged vacuum lines and could not find anything out of place.
What do you all think?
Thanks,
Jeff
Engine coolent temp: 185
Short Term Fuel Trim - Bank 1: -0.78%
Long Term Fuel Trim - Bank 1: 0.78%
Short Term Fuel Trim - Bank 2: 29.69%
Long Term Fuel Trim - Bank 2: 24.22%
Intake Manifold Absolute Pressure: 15.99 inHg
Engine RPM: 1552.25 RPM
Vehicle Speed: 17.40 MPH
Ignition Timing Advance #1 Cylinder: 36.50
Intake Air Temp: 78.80
Air Flow Rate MAF Sensor: 2.69 lb.min
Absolute Throttle Possition: 20.78%
Oxygen Sensor Output Voltage (B1-S1): 0.65v
Oxygen Sensor Output Voltage (B1-S2): 0.49v
Short Term Fuel Trim (B1-S1): 0.78%
Short Term Fuel Trim (B1-S2): 99.22%
Oxygen Sensor Output Voltage (B2-S1): 0.01v
Oxygen Sensor Output Voltage (B2-S2): 0.77v
Short Term Fuel Trim (B2-S1): 28.91%
Short Term Fuel Trim (B2-S2): 99.22%
Time Since Engine Start: 162 sec
Fuel Rail Pressure relative to Vacuum: 38.88 PSI
Commanded EGR: 43.14%
EGR Error: 16.41%
Commanded Evaporative Purge: 0.00%
Fuel Level Input: 58.82%
Warm ups since DTC Cleared: 255
Distance since DTC Cleared: 25850.86 miles
Evap System Vapor Pressure: -32.65 inHg
Barometric Pressure: 29.91 inHg
Catalyst Temp Bank 1: 1126.76
Catalyst Temp Bank 2: 1126.76
Looking at the Bank 2 numbers I would say that the B2-S1 needs replacement. I looked for broken or dislodged vacuum lines and could not find anything out of place.
What do you all think?
Thanks,
Jeff